upstream/ipython Files · IPython/nbconvert/preprocessors/clearoutput.py

DEV: Refactor checkpoint logic from FileContentsManager....

DEV: Refactor checkpoint logic from FileContentsManager. - Add a `CheckpointManager` base class and infrastructure for creating a `checkpoint_manager` instance attribute on `ContentsManager`. - Provide default implementations of `delete` and `rename` in the base `ContentsManager` class. `ContentsManager` subclasses are now required to implement `delete_file` and `rename_file`. These methods no longer need to manage checkpoints. - Move checkpoint-related functionality from `FileContentsManager` to a dedicated `FileCheckpointManager` subclass. - Move shared filesystem interaction logic into `FileManagerMixin` used by both `FileContentsManager` and `FileCheckpointManager`. - Minor tweaks to ContentsManager tests to get methods from the right object. The purpose of this change is to provide an API for users to replace just the checkpoint logic associated with a particular `ContentsManager`. In particular, this change makes it possible to easily support remote storage of checkpoints while otherwise retaining normal filesystem interactions.

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      """Module containing a preprocessor that removes the outputs from code cells"""

      # Copyright (c) IPython Development Team.

      # Distributed under the terms of the Modified BSD License.

      from .base import Preprocessor

      class ClearOutputPreprocessor(Preprocessor):

          """

          Removes the output from all code cells in a notebook.

          """

          def preprocess_cell(self, cell, resources, cell_index):

              """

              Apply a transformation on each cell. See base.py for details.

              """

              if cell.cell_type == 'code':

                  cell.outputs = []

                  cell.execution_count = None

              return cell, resources

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				"""Module containing a preprocessor that removes the outputs from code cells"""

				# Copyright (c) IPython Development Team.
				# Distributed under the terms of the Modified BSD License.

				from .base import Preprocessor

				class ClearOutputPreprocessor(Preprocessor):
				"""
				Removes the output from all code cells in a notebook.
				"""

				def preprocess_cell(self, cell, resources, cell_index):
				"""
				Apply a transformation on each cell. See base.py for details.
				"""
				if cell.cell_type == 'code':
				cell.outputs = []
				cell.execution_count = None
				return cell, resources